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More fuel dramas for Ricciardo in Malaysia

Red Bull experienced more issues with the contentious fuel-flow sensors during practice at the Malaysian Grand Prix on Friday, raising the prospect of another showdown with Formula One officials similar to the one that resulted in the team's disqualification in Australia.

Daniel Ricciardo banked no points in Melbourne after finishing second because race stewards said Red Bull exceeded the new fuel flow limit of 100 kilograms per hour.

Red Bull blamed the issue on faulty readings from the FIA-approved fuel sensors and has appealed the disqualification.

The sensors on Ricciardo's car malfunctioned again at Sepang on Friday, team principal Christian Horner said, showing a discrepancy with the team's own fuel-flow readings.

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In Melbourne, the team stood by its measurements and refused FIA directives to adhere to the reading on the sensor, and were subsequently disqualified.

Horner said he would talk with race director Charlie Whiting if the problem persisted on Saturday, in the hope of avoiding another post-race drama.

"If we don't (get synchronised readings) we will find ourselves in an awkward situation, but one we will try to work with the FIA on, but we will find ourselves in the same dilemma as Melbourne," Horner said.

"We will have that conversation with Charlie and ... hopefully we can agree on something that is sensible."

The basis of Red Bull's appeal of the Melbourne stewards' ruling, which will be held on April 14, is that the sensors were faulty and the limit of 100 kilograms per hour fuel flow is a technical directive rather than a regulation and therefore is unenforceable.